From owner-freebsd-commit Sat Mar 2 11:38:38 1996 Return-Path: owner-commit Received: (from root@localhost) by freefall.freebsd.org (8.7.3/8.7.3) id LAA12524 for freebsd-commit-outgoing; Sat, 2 Mar 1996 11:38:38 -0800 (PST) Received: (from root@localhost) by freefall.freebsd.org (8.7.3/8.7.3) id LAA12516 for cvs-all-outgoing; Sat, 2 Mar 1996 11:38:36 -0800 (PST) Received: (from peter@localhost) by freefall.freebsd.org (8.7.3/8.7.3) id LAA12493 Sat, 2 Mar 1996 11:38:23 -0800 (PST) Date: Sat, 2 Mar 1996 11:38:23 -0800 (PST) From: Peter Wemm Message-Id: <199603021938.LAA12493@freefall.freebsd.org> To: CVS-committers, cvs-all, cvs-sys Subject: cvs commit: src/sys/conf files src/sys/i386/conf LINT Makefile.i386 files.i386 options.i386 src/sys/i386/i386 exception.s locore.s machdep.c trap.c src/sys/i386/include md_var.h pcb.h src/sys/i386/linux linux_genassym.c linux_locore.s linux_proto.h linux_syscall.h linux_sysvec.c linux_util.c linux_util.h imgact_linux.c linux.h linux_dummy.c linux_file.c linux_ioctl.c linux_ipc.c linux_misc.c linux_signal.c linux_socket.c linux_stats.c linux_sysent.c linux_generic.c sysproto.h src/sys/sys exec.h signal.h signalvar.h sysent.h src/sys/i386/ibcs2 ibcs2_sysvec.c ibcs2_util.h src/sys/kern init_sysvec.c imgact_aout.c init_sysent.c kern_exec.c kern_sig.c makesyscalls.sh Sender: owner-commit@FreeBSD.ORG Precedence: bulk peter 96/03/02 11:38:21 Modified: sys/conf files sys/i386/conf LINT Makefile.i386 files.i386 options.i386 sys/i386/i386 exception.s locore.s machdep.c trap.c sys/i386/ibcs2 ibcs2_sysvec.c ibcs2_util.h sys/i386/include md_var.h pcb.h sys/i386/linux imgact_linux.c linux.h linux_dummy.c linux_file.c linux_ioctl.c linux_ipc.c linux_misc.c linux_signal.c linux_socket.c linux_stats.c linux_sysent.c sys/kern imgact_aout.c init_sysent.c kern_exec.c kern_sig.c makesyscalls.sh sys/sys exec.h signal.h signalvar.h sysent.h Added: sys/i386/linux linux_genassym.c linux_locore.s linux_proto.h linux_syscall.h linux_sysvec.c linux_util.c linux_util.h sys/kern init_sysvec.c Removed: sys/i386/linux linux_generic.c sysproto.h Log: Mega-commit for Linux emulator update.. This has been stress tested under netscape-2.0 for Linux running all the Java stuff. The scrollbars are now working, at least on my machine. (whew! :-) I'm uncomfortable with the size of this commit, but it's too inter-dependant to easily seperate out. The main changes: COMPAT_LINUX is *GONE*. Most of the code has been moved out of the i386 machine dependent section into the linux emulator itself. The int 0x80 syscall code was almost identical to the lcall 7,0 code and a minor tweak allows them to both be used with the same C code. All kernels can now just modload the lkm and it'll DTRT without having to rebuild the kernel first. Like IBCS2, you can statically compile it in with "options LINUX". A pile of new syscalls implemented, including getdents(), llseek(), readv(), writev(), msync(), personality(). The Linux-ELF libraries want to use some of these. linux_select() now obeys Linux semantics, ie: returns the time remaining of the timeout value rather than leaving it the original value. Quite a few bugs removed, including incorrect arguments being used in syscalls.. eg: mixups between passing the sigset as an int, vs passing it as a pointer and doing a copyin(), missing return values, unhandled cases, SIOC* ioctls, etc. The build for the code has changed. i386/conf/files now knows how to build linux_genassym and generate linux_assym.h on the fly. Supporting changes elsewhere in the kernel: The user-mode signal trampoline has moved from the U area to immediately below the top of the stack (below PS_STRINGS). This allows the different binary emulations to have their own signal trampoline code (which gets rid of the hardwired syscall 103 (sigreturn on BSD, syslog on Linux)) and so that the emulator can provide the exact "struct sigcontext *" argument to the program's signal handlers. The sigstack's "ss_flags" now uses SS_DISABLE and SS_ONSTACK flags, which have the same values as the re-used SA_DISABLE and SA_ONSTACK which are intended for sigaction only. This enables the support of a SA_RESETHAND flag to sigaction to implement the gross SYSV and Linux SA_ONESHOT signal semantics where the signal handler is reset when it's triggered. makesyscalls.sh no longer appends the struct sysentvec on the end of the generated init_sysent.c code. It's a lot saner to have it in a seperate file rather than trying to update the structure inside the awk script. :-) At exec time, the dozen bytes or so of signal trampoline code are copied to the top of the user's stack, rather than obtaining the trampoline code the old way by getting a clone of the parent's user area. This allows Linux and native binaries to freely exec each other without getting trampolines mixed up. Revision Changes Path 1.62 +1 -0 src/sys/conf/files 1.242 +1 -2 src/sys/i386/conf/LINT 1.76 +3 -2 src/sys/i386/conf/Makefile.i386 1.130 +18 -5 src/sys/i386/conf/files.i386 1.6 +2 -0 src/sys/i386/conf/options.i386 1.15 +6 -6 src/sys/i386/i386/exception.s 1.63 +10 -4 src/sys/i386/i386/locore.s 1.176 +13 -26 src/sys/i386/i386/machdep.c 1.73 +23 -114 src/sys/i386/i386/trap.c 1.2 +8 -2 src/sys/i386/ibcs2/ibcs2_sysvec.c 1.5 +4 -2 src/sys/i386/ibcs2/ibcs2_util.h 1.8 +2 -2 src/sys/i386/include/md_var.h 1.11 +1 -2 src/sys/i386/include/pcb.h 1.9 +13 -2 src/sys/i386/linux/imgact_linux.c 1.5 +57 -5 src/sys/i386/linux/linux.h 1.3 +43 -62 src/sys/i386/linux/linux_dummy.c 1.6 +354 -43 src/sys/i386/linux/linux_file.c 1.6 +38 -9 src/sys/i386/linux/linux_ioctl.c 1.7 +30 -24 src/sys/i386/linux/linux_ipc.c 1.13 +284 -151 src/sys/i386/linux/linux_misc.c 1.4 +130 -80 src/sys/i386/linux/linux_signal.c 1.4 +2 -7 src/sys/i386/linux/linux_socket.c 1.5 +94 -67 src/sys/i386/linux/linux_stats.c 1.5 +162 -226 src/sys/i386/linux/linux_sysent.c 1.23 +1 -3 src/sys/kern/imgact_aout.c 1.34 +0 -11 src/sys/kern/init_sysent.c 1.36 +12 -2 src/sys/kern/kern_exec.c 1.19 +18 -16 src/sys/kern/kern_sig.c 1.17 +2 -14 src/sys/kern/makesyscalls.sh 1.13 +2 -2 src/sys/sys/exec.h 1.7 +8 -5 src/sys/sys/signal.h 1.10 +2 -1 src/sys/sys/signalvar.h 1.7 +8 -1 src/sys/sys/sysent.h